January weather forecast
Londrina, Brazil

Despite experiencing the second-highest relative humidity of the year at 87%, the start of the year in Londrina, Brazil is characterized by warm temperatures, a significant amount of rainfall, and a fair amount of sunshine. The total precipitation in January reaches up to 137mm (5.39"), making it the rainiest month. However, the UV index is at moderately high levels, indicating that sun protection measures are necessary during most times of the day. Wind speeds in January can create a cooling effect that may counterbalance the warm temperatures to some extent. Yet, despite this precipitation and humidity, January also brings with it relatively generous sunlight, ensuring to light up the landscape and enhancing its natural beauty.

Temperature

The introduction of January sees an average high-temperature of a still moderately hot 27.8°C (82°F), hardly deviating from December. In Londrina, the average low-temperature during the month of January is a comfortable 19.2°C (66.6°F).

Heat index

During January, the heat index is estimated at a hot 33°C (91.4°F). Implement more preventive measures, heat cramps and heat exhaustion are probable. Heatstroke might result from extended activity.
Understand that the heat index values take into account shaded locations and mild winds. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'real feel' or 'feels like', is the result of factoring in humidity to the air temperature, indicating perceived warmth. The individual's experience of temperature can be shaped by numerous aspects such as metabolic variations, physical exertion, and attire. Given the impact of direct sunlight, it's noteworthy that the felt temperature can rise by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Children often overlook the necessity for resting and fluid replenishment. Thirst is a late sign of dehydration - thus, it is critical to stay hydrated, especially during extended periods of physical activities.

Humidity

January and June, with an average relative humidity of 87%, are the most humid months.

Rainfall

The month with the most rainfall is January, when the rain falls for 23.2 days and typically aggregates up to 137mm (5.39") of precipitation.

Daylight

The average length of the day in January is 13h and 23min.
On the first day of the month, sunrise is at 05:41 and sunset at 19:14. On the last day of January, sunrise is at 06:03 and sunset at 19:13 -03.

Sunshine

The month with the least sunshine in Londrina is January, with an average of 7.2h of sunshine.

UV index

The months with the highest UV index are January through March, August through December, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: The average daily UV index of 6 in January transforms into the following instructions:
Shun overexposure. Protection from sun ravages is indispensable. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.